There were 2 illustrations found for W.W.S.
2 211662 Castilleja indivisa Engelm.W. Curtis, Bot. Mag., vol. 104 [ser. 3, vol. 34]: t. 6377 (1878) [W.W.S.]
6 695920 Neomarica brachypus (Baker) Sprague [125 307984 Cypella brachypus Baker]W. Curtis, Bot. Mag., vol. 104 [ser. 3, vol. 34]: t. 6380 (1878) [W.W.S.]